| Bug #28257 | Optimizer does not use a required multi-key index on subquery selects. | ||
|---|---|---|---|
| Submitted: | 5 May 2007 5:59 | Modified: | 14 Jan 2013 17:08 |
| Reporter: | Aaron Gavic | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S2 (Serious) |
| Version: | 4.1.21-standard-log, 5.0.77 | OS: | Any |
| Assigned to: | Matthew Lord | CPU Architecture: | Any |
| Tags: | subquery benchmark | ||
If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.
To split a large file:
- On *nix platforms use the split command e.g.
split -b 50MB <my_large_archive> <my_split_archive_prefix> - On windows use WinZip or a similar utility to split the large file
[5 May 2007 6:02]
Aaron Gavic
[4 Oct 2012 21:57]
Petr Medonos
explain
Attachment: explain_28257.txt (text/plain), 7.75 KiB.
